You can prevent single point of failure with two load balancers:
A load balancer can provide HA if have two or more load balancers for redundancy that provides one virtual IP address (or more) as endpoint for the clients.
If the LB node holding the virtual IP goes down, the virtual IP will failover to a still active working LB node.
I think it will work if you take two Pi's/nodes that can do both the LBing and be members of your load balanced DNS/HTTP farm.
I noticed latest Zevenet (former Zen) is also available for Stretch now:
I really have no need fo…
EDIT; Ps. for others reading this, dont run to the shop and get more hardware yet!
KISS, an acronym for "Keep it simple, stupid!", is a design principle first noted by the U.S. Navy in 1960. First seen partly in American English by at least 1938, the KISS principle states that most systems work best if they are kept simple rather than made complicated; therefore, simplicity should be a key goal in design, and unnecessary complexity should be avoided. The phrase has been associated with aircraft engineer Kelly Johnson. The term "KISS principle" was in popular use by 197 The acro...